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Heat and noise reducing and speed increasing system of electronically controlled electric vehicle door

A technology of electronically controlled electric vehicles and electric vehicles, which is applied to door/window accessories, power control mechanisms, locks controlled by non-mechanical transmission, etc., which can solve the problems of complex locking action and slow closing speed, etc., and achieve small friction angle , small frictional resistance and large lead

Active Publication Date: 2015-03-25
JIANGSU SHENYANG ELEVATOR PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects of slow closing speed and complex locking action of the existing electronically controlled electric vehicle door, the purpose of the present invention is to provide an electronically controlled electric vehicle door heat reduction and noise reduction speed-up system, which adopts the method of increasing the pitch (lead), The transmission mechanism of the variable-diameter combined screw pair, the guide mechanism with spherical guide wheels and the variable-diameter combined mechanical locking device form a more advanced, reasonable, safe and fast door system

Method used

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  • Heat and noise reducing and speed increasing system of electronically controlled electric vehicle door
  • Heat and noise reducing and speed increasing system of electronically controlled electric vehicle door
  • Heat and noise reducing and speed increasing system of electronically controlled electric vehicle door

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Figure 5 It is a block diagram of the locking device of the first embodiment. A form of two-in-one locking and transmission, the reduced-diameter combined nut 3-1 is composed of a small-diameter nut 3-11 and a large-diameter nut 3-12. The small-diameter nut 3-11 is screwed with the small-diameter part 3-21 of the variable-diameter combination screw to realize the rapid opening and closing of the car door, and is made of new engineering plastics with less friction coefficient (f=0.11). The large-diameter nut 3-12 is screwed together with the large-diameter part 3-22 of the variable-diameter combined screw rod to meet the mechanical self-locking condition. The large-diameter nut 3-12 is made of new engineering plastics with a relatively large friction coefficient (f=0.45). During normal operation, the small-diameter part of the variable-diameter combination screw nut moves relatively, driving the door leaf 1-1 to switch. This section has a small friction coefficient, ...

Embodiment 2

[0031] Image 6It is another form of two-in-one locking and transmission, and the reduced-diameter combined nut 3-1 is composed of a small diameter and a large diameter. The small-diameter nut 3-11 is partially screwed with the small-diameter part 3-21 [Tr16*32 (p8)] of the variable-diameter combination screw to realize the rapid opening and closing of the car door. This part has a small friction angle and a large lead. The large-diameter nut 3-12 is screwed together with the large-diameter part 3-22 [Tr104*32(p8)] of the variable-diameter combination screw rod, and the length is only 32mm to realize the locking function of the car door.

[0032] Helix angle λ λ=arc tan(s / πd)

[0033] Equivalent friction angle arc tan fv

[0034] Equivalent coefficient of friction fv fv=f / cosβ

[0035] S---screw lead s=32

[0036] d---screw middle diameter d=100

[0037] f---Friction coefficient Steel---New engineering plastic screw pair f≈0.1

[0038] π---Circle ratio π=3.1415926….

...

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Abstract

The invention provides a heat and noise reducing and speed increasing system of an electronically controlled electric vehicle door. The system comprises vehicle door systems (1) and a door head mechanism (7), wherein each vehicle door system (1) comprises left and right door leaves (1-1) and a shifting fork (1-2). The system is characterized in that a door control unit (6) gives an instruction, then a motor drives screws to rotate, and nuts drive the shifting fork and the door leaves to carry out linear motion along the axis direction of the screws, thus achieving opening and closing of the vehicle door. According to the system, a locking device and a transmission device are combined into a whole; the minor-diameter part achieves quick opening and closing of the vehicle door; the closing speed is improved to 1.5-4.5s; spherical guide wheels and guide rails form point contact; when the guide wheels roll, the frictional resistance is low and the frictional heat is still maintained at the original level, so that noises can not be added; screw-nut screw pairs achieve self-lubricating and the operating states are ensured without oiling, thus reducing the maintenance cost; and a more advanced, reasonable, safe and quick vehicle door system is formed.

Description

technical field [0001] The invention relates to the transmission, guidance and mechanical locking device of the electronically controlled electric door of a rail transit vehicle, in particular to a new type of two-in-one mechanical mechanism of a low-friction and heat-reducing variable-diameter screw nut transmission mechanism, a point contact guiding mechanism, and a transmission and locking mechanism. locking device. Background technique [0002] Electric control electric doors for rail vehicles are widely used in railways and urban rail trains. It is mainly composed of door leaf, driving mechanism, transmission device, guiding device, locking device, door control unit (DCU) and door head mechanism. The driving mechanism is the power source, which drives the transmission device, turns the rotary motion into a linear motion, and transmits it to the door leaf to realize the opening and closing of the door leaf. The guide device defines the running track of the door leaf. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E05F15/652E05B47/00E05D13/00
Inventor 邹发君
Owner JIANGSU SHENYANG ELEVATOR PARTS
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